Correct answer: Qf71...K:e4 2.Qf3# 1.Qd1+? 1...Kc4[a] 2.Qd3#[A] 1...K:c6/[б]/ 2.Qd6#[Б] but 1...K:e4! 1.Kb5?? zz 1...K:e4 2.Qf3# but 1...e5!